[RFC PATCH 5/8] block: Add block device LED trigger info to struct genhd
From: Ian Pilcher <hidden>
Date: 2021-07-29 01:54:45
Also in:
linux-block, linux-leds, lkml
Subsystem:
block layer, the rest · Maintainers:
Jens Axboe, Linus Torvalds
* Initialize trigger info when device is added. Signed-off-by: Ian Pilcher <redacted> --- block/blk-ledtrig.h | 7 +++++++ block/genhd.c | 1 + include/linux/genhd.h | 4 ++++ 3 files changed, 12 insertions(+)
diff --git a/block/blk-ledtrig.h b/block/blk-ledtrig.h
index 894843249deb..5854b21a210c 100644
--- a/block/blk-ledtrig.h
+++ b/block/blk-ledtrig.h@@ -13,9 +13,16 @@ void blk_ledtrig_init(void); +static inline void blk_ledtrig_disk_init(struct gendisk *const gd) +{ + gd->ledtrig = NULL; + mutex_init(&gd->ledtrig_mutex); +} + #else // CONFIG_BLK_LED_TRIGGERS static inline void blk_ledtrig_init(void) {} +static inline void blk_ledtrig_disk_init(const struct gendisk *gd) {} #endif // CONFIG_BLK_LED_TRIGGERS
diff --git a/block/genhd.c b/block/genhd.c
index d0b1d8f743ae..420325447c5d 100644
--- a/block/genhd.c
+++ b/block/genhd.c@@ -540,6 +540,7 @@ static void __device_add_disk(struct device *parent, struct gendisk *disk, disk_add_events(disk); blk_integrity_add(disk); + blk_ledtrig_disk_init(disk); } void device_add_disk(struct device *parent, struct gendisk *disk,
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index 13b34177cc85..3409334c9b4c 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h@@ -169,6 +169,10 @@ struct gendisk { #if IS_ENABLED(CONFIG_CDROM) struct cdrom_device_info *cdi; #endif +#ifdef CONFIG_BLK_LED_TRIGGERS + struct blk_ledtrig *ledtrig; + struct mutex ledtrig_mutex; +#endif /* CONFIG_BLK_LED_TRIGGERS */ int node_id; struct badblocks *bb; struct lockdep_map lockdep_map;
--
2.31.1
_______________________________________________
Kernelnewbies mailing list
Kernelnewbies@kernelnewbies.org
https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies